Which of the following helps the heart in frictionless movement?

Keep practicing — related questions

• Movements in heart is brought by
• _______ protects the muscular heart.
• Which of the following function is performed by pericardial fluid?
• Heart is surrounded by:
• ________ muscles are also known as unstriated, visceral or involuntary muscle.
• Which of the following functions is performed by the pericardial fluid?
• The outer covering of heart is known as the ______________.
• The oxygenated haemolymph entering the heart is isolated by __________.